# Copyright (c) Ansible Project
# GNU General Public License v3.0+ (see LICENSES/GPL-3.0-or-later.txt or https://www.gnu.org/licenses/gpl-3.0.txt)
# SPDX-License-Identifier: GPL-3.0-or-later

from __future__ import annotations

import json
import os
from unittest import mock

import pytest

linode_apiv4 = pytest.importorskip("linode_api4")

from linode_api4.errors import ApiError as LinodeApiError
from linode_api4 import LinodeClient

from ansible_collections.community.general.plugins.modules import linode_v4
from ansible_collections.community.general.plugins.module_utils.linode import get_user_agent
from ansible_collections.community.internal_test_tools.tests.unit.plugins.modules.utils import set_module_args

from .linode_conftest import access_token, no_access_token_in_env, default_args, mock_linode  # noqa: F401, pylint: disable=unused-import


def test_mandatory_state_is_validated(capfd):
    with pytest.raises(SystemExit):
        with set_module_args({"label": "foo"}):
            linode_v4.initialise_module()

    out, err = capfd.readouterr()
    results = json.loads(out)

    assert all(txt in results["msg"] for txt in ("state", "required"))
    assert results["failed"] is True


def test_mandatory_label_is_validated(capfd):
    with pytest.raises(SystemExit):
        with set_module_args({"state": "present"}):
            linode_v4.initialise_module()

    out, err = capfd.readouterr()
    results = json.loads(out)

    assert all(txt in results["msg"] for txt in ("label", "required"))
    assert results["failed"] is True


def test_mandatory_access_token_is_validated(default_args, no_access_token_in_env, capfd):
    with pytest.raises(SystemExit):
        with set_module_args(default_args):
            linode_v4.initialise_module()

    out, err = capfd.readouterr()
    results = json.loads(out)

    assert results["failed"] is True
    assert all(
        txt in results["msg"]
        for txt in (
            "missing",
            "required",
            "access_token",
        )
    )


def test_mandatory_access_token_passed_in_env(default_args, access_token):
    with set_module_args(default_args):
        try:
            module = linode_v4.initialise_module()
        except SystemExit:
            pytest.fail("'access_token' is passed in environment")

    now_set_token = module.params["access_token"]
    assert now_set_token == os.environ["LINODE_ACCESS_TOKEN"]


def test_mandatory_access_token_passed_in_as_parameter(default_args, no_access_token_in_env):
    default_args.update({"access_token": "foo"})
    with set_module_args(default_args):
        try:
            module = linode_v4.initialise_module()
        except SystemExit:
            pytest.fail("'access_token' is passed in as parameter")

    assert module.params["access_token"] == "foo"


def test_instance_by_label_cannot_authenticate(capfd, access_token, default_args):
    with set_module_args(default_args):
        module = linode_v4.initialise_module()
        client = LinodeClient(module.params["access_token"])

        target = "linode_api4.linode_client.LinodeGroup.instances"
        with mock.patch(target, side_effect=LinodeApiError("foo")):
            with pytest.raises(SystemExit):
                linode_v4.maybe_instance_from_label(module, client)

    out, err = capfd.readouterr()
    results = json.loads(out)

    assert results["failed"] is True
    assert "Unable to query the Linode API" in results["msg"]


def test_no_instances_found_with_label_gives_none(default_args, access_token):
    with set_module_args(default_args):
        module = linode_v4.initialise_module()
        client = LinodeClient(module.params["access_token"])

        target = "linode_api4.linode_client.LinodeGroup.instances"
        with mock.patch(target, return_value=[]):
            result = linode_v4.maybe_instance_from_label(module, client)

    assert result is None


def test_optional_region_is_validated(default_args, capfd, access_token):
    default_args.update({"type": "foo", "image": "bar"})
    with set_module_args(default_args):
        with pytest.raises(SystemExit):
            linode_v4.initialise_module()

    out, err = capfd.readouterr()
    results = json.loads(out)

    assert results["failed"] is True
    assert all(txt in results["msg"] for txt in ("required", "together", "region"))


def test_optional_type_is_validated(default_args, capfd, access_token):
    default_args.update({"region": "foo", "image": "bar"})
    with set_module_args(default_args):
        with pytest.raises(SystemExit):
            linode_v4.initialise_module()

    out, err = capfd.readouterr()
    results = json.loads(out)

    assert results["failed"] is True
    assert all(txt in results["msg"] for txt in ("required", "together", "type"))


def test_optional_image_is_validated(default_args, capfd, access_token):
    default_args.update({"type": "foo", "region": "bar"})
    with set_module_args(default_args):
        with pytest.raises(SystemExit):
            linode_v4.initialise_module()

    out, err = capfd.readouterr()
    results = json.loads(out)

    assert results["failed"] is True
    assert all(txt in results["msg"] for txt in ("required", "together", "image"))


@pytest.mark.parametrize("value", [True, False])
def test_private_ip_valid_values(default_args, access_token, value):
    default_args.update({"private_ip": value})
    with set_module_args(default_args):
        module = linode_v4.initialise_module()

    assert module.params["private_ip"] is value


@pytest.mark.parametrize("value", ["not-a-bool", 42])
def test_private_ip_invalid_values(default_args, capfd, access_token, value):
    default_args.update({"private_ip": value})
    with set_module_args(default_args):
        with pytest.raises(SystemExit):
            linode_v4.initialise_module()

    out, err = capfd.readouterr()
    results = json.loads(out)

    assert results["failed"] is True
    assert "not a valid boolean" in results["msg"]


def test_private_ip_default_value(default_args, access_token):
    default_args.pop("private_ip", None)
    with set_module_args(default_args):
        module = linode_v4.initialise_module()

    assert module.params["private_ip"] is False


def test_private_ip_is_forwarded_to_linode(default_args, mock_linode, access_token):
    default_args.update({"private_ip": True})
    with set_module_args(default_args):
        target = "linode_api4.linode_client.LinodeGroup.instances"
        with mock.patch(target, return_value=[]):
            with pytest.raises(SystemExit):
                target = "linode_api4.linode_client.LinodeGroup.instance_create"
                with mock.patch(target, return_value=(mock_linode, "passw0rd")) as instance_create_mock:
                    linode_v4.main()

    args, kwargs = instance_create_mock.call_args
    assert kwargs["private_ip"] is True


def test_instance_already_created(default_args, mock_linode, capfd, access_token):
    default_args.update({"type": "foo", "region": "bar", "image": "baz"})
    with set_module_args(default_args):
        target = "linode_api4.linode_client.LinodeGroup.instances"
        with mock.patch(target, return_value=[mock_linode]):
            with pytest.raises(SystemExit) as sys_exit_exc:
                linode_v4.main()

    assert sys_exit_exc.value.code == 0

    out, err = capfd.readouterr()
    results = json.loads(out)

    assert results["changed"] is False
    assert "root_password" not in results["instance"]
    assert results["instance"]["label"] == mock_linode._raw_json["label"]


def test_instance_to_be_created_without_root_pass(default_args, mock_linode, capfd, access_token):
    default_args.update({"type": "foo", "region": "bar", "image": "baz"})
    with set_module_args(default_args):
        target = "linode_api4.linode_client.LinodeGroup.instances"
        with mock.patch(target, return_value=[]):
            with pytest.raises(SystemExit) as sys_exit_exc:
                target = "linode_api4.linode_client.LinodeGroup.instance_create"
                with mock.patch(target, return_value=(mock_linode, "passw0rd")):
                    linode_v4.main()

    assert sys_exit_exc.value.code == 0

    out, err = capfd.readouterr()
    results = json.loads(out)

    assert results["changed"] is True
    assert results["instance"]["label"] == mock_linode._raw_json["label"]
    assert results["instance"]["root_pass"] == "passw0rd"


def test_instance_to_be_created_with_root_pass(default_args, mock_linode, capfd, access_token):
    default_args.update(
        {
            "type": "foo",
            "region": "bar",
            "image": "baz",
            "root_pass": "passw0rd",
        }
    )
    with set_module_args(default_args):
        target = "linode_api4.linode_client.LinodeGroup.instances"
        with mock.patch(target, return_value=[]):
            with pytest.raises(SystemExit) as sys_exit_exc:
                target = "linode_api4.linode_client.LinodeGroup.instance_create"
                with mock.patch(target, return_value=mock_linode):
                    linode_v4.main()

    assert sys_exit_exc.value.code == 0

    out, err = capfd.readouterr()
    results = json.loads(out)

    assert results["changed"] is True
    assert results["instance"]["label"] == mock_linode._raw_json["label"]
    assert "root_pass" not in results["instance"]


def test_instance_to_be_deleted(default_args, mock_linode, capfd, access_token):
    default_args.update({"state": "absent"})
    with set_module_args(default_args):
        target = "linode_api4.linode_client.LinodeGroup.instances"
        with mock.patch(target, return_value=[mock_linode]):
            with pytest.raises(SystemExit) as sys_exit_exc:
                linode_v4.main()

    assert sys_exit_exc.value.code == 0

    out, err = capfd.readouterr()
    results = json.loads(out)

    assert results["changed"] is True
    assert results["instance"]["label"] == mock_linode._raw_json["label"]


def test_instance_already_deleted_no_change(default_args, mock_linode, capfd, access_token):
    default_args.update({"state": "absent"})
    with set_module_args(default_args):
        target = "linode_api4.linode_client.LinodeGroup.instances"
        with mock.patch(target, return_value=[]):
            with pytest.raises(SystemExit) as sys_exit_exc:
                linode_v4.main()

    assert sys_exit_exc.value.code == 0

    out, err = capfd.readouterr()
    results = json.loads(out)

    assert results["changed"] is False
    assert results["instance"] == {}


def test_user_agent_created_properly():
    try:
        from ansible.module_utils.ansible_release import __version__ as ansible_version
    except ImportError:
        ansible_version = "unknown"

    expected_user_agent = f"Ansible-linode_v4_module/{ansible_version}"
    assert expected_user_agent == get_user_agent("linode_v4_module")
